<template>
  <view>
    <view class="search-box">
      <uni-search-bar  @input="input" :radius="100" cancelButton="none" placeholder="输入搜索内容" />
    </view>
    
    <view class="sugg-list" v-if="searchResults.value.length!==0">
      <view class="sugg-item" v-for="(item,i) in searchResults.value" :key="i" @click="gotoDetail(item.goods_id)">
        <view class="goods-name">{{item.goods_name}}</view>
        <uni-icons type="arrowright" size="16" ></uni-icons>
      </view>
    </view>
    
    <view class="history-box" v-else>
      <view class="history-title">
        <text>搜索历史</text>
        <uni-icons type="trash" size="17" @click="cleanHistory"></uni-icons>
      </view>
      <view class="history-list">
        <uni-tag :text="item" :inverted="true" type="error" v-for="(item,i) in histotys" :key="i" @click="gotoGoodsList(item)"></uni-tag>
      </view>
    </view>
    
  </view>
</template>

<script setup>
import { computed, reactive, ref } from "vue";

  const timer=ref(null)
  const kw=ref('')
  const searchResults=reactive([])
  const historyList=reactive([])
  historyList.value=JSON.parse(uni.getStorageSync('kw') || '[]')
  searchResults.value=[]
  
  const histotys=computed(()=>{
    return [...historyList.value].reverse()
  })
  
  const input=(e)=>{
    clearTimeout(timer.value)
    timer.value=setTimeout(()=>{
      kw.value=e
      getSearchList()
    },500)
  }
  
  const getSearchList=async()=>{
    if(kw.value===''){
      searchResults.value=[]
      return
    }
     const { data: res } = await uni.$http.get('/api/public/v1/goods/qsearch', { query: kw.value })
      if (res.meta.status !== 200) return uni.$showMsg()
      searchResults.value = res.message
      saveSearchHistory()
  }
  
  const gotoDetail=(goods_id)=>{
    uni.navigateTo({
      url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods_id
    })
  }
  
  const saveSearchHistory=()=>{
    // historyList.value.push(kw.value)
    const set=new Set(historyList.value)
    set.delete(kw.value)
    set.add(kw.value)
    historyList.value=Array.from(set)
    uni.setStorageSync('kw',JSON.stringify(historyList.value))
  }
  
  const cleanHistory=()=>{
    uni.showModal({
    	title: '提示',
    	content: '是否清空搜索历史',
    	success: function (res) {
    		if (res.confirm) {
          uni.showToast({
          	title: '清除成功',
          	duration: 600,
            icon:"success"
          });
    			historyList.value=[]
          
    		} else if (res.cancel) {
    			return
    		}
    	}
    });
  }
  
  const gotoGoodsList=(kw)=>{
    uni.navigateTo({
      url: '/subpkg/goods_list/goods_list?query=' + kw
    })
  }
  
</script>

<style lang="scss">
.search-box{
  position: sticky;
  top: 0;
  z-index: 999;
}
.sugg-list{
  padding: 0 5px;
  .sugg-item{
    font-size: 12px;
    padding: 13px 0;
    border-bottom: 1px solid #efefef;
    display: flex;
    align-items: center;
    justify-content: space-between;
    .goods-name{
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      margin-right: 3px;
    }
  }
}
.history-box{
  padding: 0 5px;
  .history-title{
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 40px;
    font-size: 13px;
    border-bottom: 1px solid #efefef;
  }
  .history-list{
    display: flex;
    flex-wrap: wrap;
    .uni-tag{
      margin-top: 5px;
      margin-right: 5px;
    }
  }
}
</style>
